Area/Circumference of a Circle

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

What is the diameter?

• 8 cm

• 16 cm

• 10 cm

• 4 cm

Tags

CCSS.7.G.B.4

What is the radius?

• 18 ft

• 72 ft

• 38 ft

• 14 ft

Tags

CCSS.7.G.B.4

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.HSG.C.A.2

What is the diameter of a circle with a radius of 8 in?

• 16 in

• 4 in

• 24 in

• 2 in

Tags

CCSS.7.G.B.4

What is the distance around a circle?

• Circumference
• Area
• Diameter
• Radius

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?

• c = 15π

• c = 2π15

• c = π(15²)

• c = π(7.5²)

Tags

CCSS.7.G.B.4

The diameter of Carol's old records from the 80s is 12 inches. Which equation would help you determine the area?

• A = 12π
• A = 2π12
• A = π(12²)
• A = π(6²)

Tags

CCSS.7.G.B.4

Find the area of the circle below.

• 113.04 cm²

• 18.84 cm²

• 9 cm²

• 28.26 cm²

Tags

CCSS.7.G.B.4

Find the area of the circle.

• 21.98 units²
• 153.86 units²
• 43.96 units²
• 615.44 units²

Tags

CCSS.7.G.B.4